3855669 has 4 divisors (see below), whose sum is σ = 5140896. Its totient is φ = 2570444.

The previous prime is 3855667. The next prime is 3855703. The reversal of 3855669 is 9665583.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 3855669 - 2¹ = 3855667 is a prime.

It is a super-2 number, since 2×3855669² = 29732366875122, which contains 22 as substring.

It is a D-number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 3855669.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3855667) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 642609 + ... + 642614.

It is an arithmetic number, because the mean of its divisors is an integer number (1285224).

Almost surely, 2^3855669 is an apocalyptic number.

It is an amenable number.

3855669 is a deficient number, since it is larger than the sum of its proper divisors (1285227).

3855669 is a wasteful number, since it uses less digits than its factorization.

3855669 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1285226.

The product of its digits is 194400, while the sum is 42.

The square root of 3855669 is about 1963.5857506103. The cubic root of 3855669 is about 156.8074098652.

The spelling of 3855669 in words is "three million, eight hundred fifty-five thousand, six hundred sixty-nine".